-7=y^2+8y+5

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Solution for -7=y^2+8y+5 equation:


Simplifying
-7 = y2 + 8y + 5

Reorder the terms:
-7 = 5 + 8y + y2

Solving
-7 = 5 + 8y + y2

Solving for variable 'y'.

Combine like terms: -7 + -5 = -12
-12 + -8y + -1y2 = 5 + 8y + y2 + -5 + -8y + -1y2

Reorder the terms:
-12 + -8y + -1y2 = 5 + -5 + 8y + -8y + y2 + -1y2

Combine like terms: 5 + -5 = 0
-12 + -8y + -1y2 = 0 + 8y + -8y + y2 + -1y2
-12 + -8y + -1y2 = 8y + -8y + y2 + -1y2

Combine like terms: 8y + -8y = 0
-12 + -8y + -1y2 = 0 + y2 + -1y2
-12 + -8y + -1y2 = y2 + -1y2

Combine like terms: y2 + -1y2 = 0
-12 + -8y + -1y2 = 0

Factor out the Greatest Common Factor (GCF), '-1'.
-1(12 + 8y + y2) = 0

Factor a trinomial.
-1((6 + y)(2 + y)) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(6 + y)' equal to zero and attempt to solve: Simplifying 6 + y = 0 Solving 6 + y = 0 Move all terms containing y to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + y = 0 + -6 Combine like terms: 6 + -6 = 0 0 + y = 0 + -6 y = 0 + -6 Combine like terms: 0 + -6 = -6 y = -6 Simplifying y = -6

Subproblem 2

Set the factor '(2 + y)' equal to zero and attempt to solve: Simplifying 2 + y = 0 Solving 2 + y = 0 Move all terms containing y to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + y = 0 + -2 Combine like terms: 2 + -2 = 0 0 + y = 0 + -2 y = 0 + -2 Combine like terms: 0 + -2 = -2 y = -2 Simplifying y = -2

Solution

y = {-6, -2}

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